#3551BA#3551BA

#3551BA is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.7% C 0.169 H 268.0°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#3551BA
RGB	rgb(53, 81, 186)
HSL	hsl(227, 56%, 47%)
HSV	hsv(227, 72%, 73%)
CMYK	cmyk(71.5%, 56.5%, 0%, 27.1%)
CIE-LAB	lab(38.17, 25.88, -58.51)
CIE-LCH	lch(38.17, 63.98, 293.86°)
OKLab	oklab(47.67% -0.0057 -0.1686)
OKLCH	oklch(47.67% 0.169 268)
XYZ	xyz(13.2705, 10.1856, 47.7115)
Luminance	0.1019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3551BA #BA9E35

analogous

#3594BA #3551BA #5B35BA

triadic

#3551BA #BA3551 #51BA35

tetradic

#3551BA #BA3594 #BA9E35 #35BA5B

square

#3551BA #BA3594 #BA9E35 #35BA5B

split-complementary

#3551BA #BA5B35 #94BA35

monochromatic

#1A285B #273C8A #3551BA #5C74D0 #8B9DDE

Accessibility & contrast

On white

6.91

#3551BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3551BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3551BA

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3551BA	#FFFFFF	#000000	##FFFFFF
##3551BA	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BE

Deuteranopia (green-blind)

#0054B8

Tritanopia (blue-blind)

#006B7D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3551ba;
/* rgb */ color: rgb(53, 81, 186);
/* oklch */ color: oklch(47.7% 0.169 268.0);

Tailwind

colors: {
  custom: {
    50: '#7e81d0',
    500: '#3551ba',
    950: '#000000',
  },
}

SCSS

$custom: #3551ba;
$custom-light: #7e81d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3551ba",
  "rgb": {
    "r": 53,
    "g": 81,
    "b": 186
  },
  "hsl": {
    "h": 227.368,
    "s": 55.649,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47673,
    "c": 0.16868,
    "h": 268
  },
  "luminance": 0.10187
}

Semantic roles & 50–950 ramp

primary

#3551BA

secondary

#C8BA82

accent

#BF49DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3551BA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →